Photo 1 of 3.1lbs Pool Filter Balls for Sand Filter, Upgrade Pool Filter Media Balls for Swimming Pool Pump, Lightweight Reusable Eco-Friendly Fiber Filters Ball Replace 100 lbs Pool Filter Sand (3.1, Pounds)

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Photo 1 of 3.1lbs Pool Filter Balls for Sand Filter, Upgrade Pool Filter Media Balls for Swimming Pool Pump, Lightweight Reusable Eco-Friendly Fiber Filters Ball Replace 100 lbs Pool Filter Sand (3.1, Pounds)Photo 2 of 3.1lbs Pool Filter Balls for Sand Filter, Upgrade Pool Filter Media Balls for Swimming Pool Pump, Lightweight Reusable Eco-Friendly Fiber Filters Ball Replace 100 lbs Pool Filter Sand (3.1, Pounds)